77284214 has 16 divisors (see below), whose sum is σ = 133380000. Its totient is φ = 32898624.

The previous prime is 77284211. The next prime is 77284219. The reversal of 77284214 is 41248277.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77284211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16439 + ... + 20610.

It is an arithmetic number, because the mean of its divisors is an integer number (8336250).

Almost surely, 2^77284214 is an apocalyptic number.

77284214 is a deficient number, since it is larger than the sum of its proper divisors (56095786).

77284214 is a wasteful number, since it uses less digits than its factorization.

77284214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37207.

The product of its digits is 25088, while the sum is 35.

The square root of 77284214 is about 8791.1440666161. The cubic root of 77284214 is about 425.9548799810.

The spelling of 77284214 in words is "seventy-seven million, two hundred eighty-four thousand, two hundred fourteen".